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GeoSwath 2007 |
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GeoSwath 2007 |
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Index March 27, 2007 April 27 (6pm) to 29 (noon), 2007
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A full description of the Geologic Framework for EarthScope's USArrray that led to the concept of GeoSwath was published in EOS, v. 87, p. 221/224. The figure below is reproduced from this article.
(from Tikoff et al.,
EOS,
87, 221/224)
The EarthScope Project has the potential to be a transformative activity for the geosciences and to take the solid Earth sciences a step beyond plate tectonics, but only if structural geology, sedimentology, petrology, geochronology, geochemistry, and geophysics are combined in an integrated manner to study the structure and evolution of the lithosphere. A goal of the GeoSwath initiative is to help accomplish this task by focusing on the 4-D construction, stabilization and modification of the North American continent, through integration of geology and geophysical imaging under EarthScope. This initiative encourages a cooperative community approach to collecting and sharing data, and takes a connected, coast-to-coast perspective that examines fundamental processes, the continent’s major geologic provinces and their boundaries. This approach requires the contribution of large segments of the U.S. geosciences community, particularly those who provide the crucial information about Earth history across both space and time.
At its initial workshop, seven focus regions across the conterminous United States were identified (see EOS, 87, 221/224), and additional community input has been received during Town Hall meetings held during the Geological Society of America and American Geophysical Union national meetings held during the fall of 2006. Now our goal is to bring the community together to formulate a science plan and produce research partnerships that will result in specific proposals. Thus two workshops will be held early in 2007.
The first workshop is co-sponsored by MARGINS and is linked to the national EarthScope meeting in March in Monterey, CA. This workshop will focus on the two westernmost target areas of the GeoSwath initiative, which are the Walker Lane belt and Cascadia.
Walker Lane: The Walker Lane Belt, situated in the western Basin and Range province, will seamlessly integrate surface geology, topography, and the history of the continental lithosphere with ongoing processes in the Earth’s mantle. Specifically, the area allows study of the present modification of continental lithosphere by the process of transform faulting and rifting. Studies here will leverage the NSF Margins initiative in the Gulf of California by extending the scientific investigations onshore from the Gulf of California to the north into Nevada.
Cascadia: The Pacific Northwest offers the best place in the conterminous United States to investigate an active subduction zone, the process of magmatic addition to the continental crust (Cascadia arc, High Lava Plains, Idaho batholith), and the interaction of deformation and magmatism. This is also potentially the best area in the North American Cordillera to study tectonic accretion and subsequent modification of the lithosphere.
The second workshop is co-sponsored by IRIS and will be held April 27-29 in a northern Rockies location. It will focus on integrated continental science in a continuous swath extending from the Pacific northwest coast to the Great Plains between 42-47° N latitude. Thus, it covers the 'Lewis and Clark' or western GeoSwath that includes the Cascadia, Northern Rockies and Black Hills/Great Plains GeoSwath target areas.
Northern Rockies: The Northern Rockies have a diverse and extensive geologic history that is recorded in rocks that range from ancient (>3.5 billion years old) gneisses of the Wyoming Craton to the modern Yellowstone hot spot/Snake River Plain. The region provides an opportunity to examine two challenging problems in the study of the formation and evolution of continental crust: (1) how newly segregated, low-density crust and lithosphere are integrated into compositionally and structurally mature continents; and (2) how newly formed crust and lithosphere evolve within the continental environment.
Black Hills/Great Plains: The Black Hills is a type locality of intracratonic deformation, allowing investigation of how displacements/stresses are transferred far into the continental interior. Further, there is a clear indication of crustal- and lithospheric-scale reactivation associated with Laramide uplifts (Black Hills, Bighorn Mountains), although the lithospheric signature of these processes is unknown. It is also possible to investigate large-scale uplift of the entire Great Plains and its possible lithospheric causes.
Together, the Cascadia, Northern Rockies and Black Hills/Great Plains target areas constitute the ‘Lewis and Clark’ or western swath. The sum of these three areas will allow the examination of modern continental tectonics and the ongoing formation of a mountain belt, and provide a balanced cross section across an entire orogenic belt from hinterland to extended foreland.
March 27, 2007.
Go to: http://www.nsf-margins.org/Geoswath07/
April 27-29, 2007.
We have made room arrangements for all participants (see list below), based on your requests. Upon Friday check-in, identify yourself as a GeoSwath participant and you will get your room assignment. Your room is already paid for the duration, so only pay for incidentals upon Sunday check-out !!Do not make your own room arrangements, but contact us if you have questions or changes!! Those with private rooms should cover the difference upon check-out (unless informed otherwise). We need to finalize rooms shortly, so respond asap with any issues.
Your meals are covered (including those not staying at the hotel), but we need to know about any food allergies and/or vegetarian requests. Only respond when you have special needs; otherwise we’ll select the meals for you (don’t worry). Note that we prepay per person, so we cannot reimburse you otherwise. Alcoholic beverages will be available for dinner (cash bar).
Remember that the workshops starts on Friday at 6pm with dinner and talks, and lasts until Sunday noon (4/27-29).
Allen Richard M. UC- Berkely Barnes Calvin Texas Tech Benford Bryn Wisconsin Braile Lawrence W. Purdue Univ. Chamberlain Kevin R. University of Wyoming Cummings Michael Portland State University Dorsey Rebecca J. University of Oregon Dueker Ken University of Wyoming Duke Edward F. South Dakota School of Mines & Tech Erslev Eric Colorado State Foster David Univ. Flordia Fuis Gary USGS Gao Stephen S. University of Missouri Glenn Nancy Idaho State University Harlan Stephen S. George Mason University Hole John Virgina Tech Housen Bernie Western Washington University Ingate Shane F. IRIS Janecke Susanne Utah State University Keller Randy Oklahoma Lageson Dave Montana State University Lewis Reed Idaho Geologic Survey and Univ. of Idaho Link Paul Idaho State University Lisenbee Alvis L. South Dakota School of Mines & Tech Lowry Tony Utah State University Lund Karen USGS Mahan Kevin R. Cal-Tech Manduca Cathryn A. Carlton College Mickus Ken Missouri State Mogk David W. Montana State University Mueller Paul A. Univ. Flordia Northrup C. J. Boise State Okure Maxwell Oklahoma Oldow John S. Univ. Idaho Rodgers David Idaho State University Russo Ray Univ. Flordia Schmitz Mark Boise State Schnyder Walt Boise State Shaw Colin Montana Shervais John Utah State University Siddoway Christine Colorado College Smaltz Sara Colorado State Smith Bob Utah Snelson Cathy UNLV Terry Michael South Dakota School of Mines & Tech Tikoff Basil Wisconsin van der Pluijm Ben Michigan Vervoort Jeff Washington State University Yuan Huaiyu University of Wyoming
SpringHill
Suites by Marriott
http://marriott.com/property/propertypage/BOIDT
424 East Parkcenter Blvd
Boise, ID 83706
ph: 208-342-1044
Airport-Hotel transportation is available.
Start: Friday, April 27 at 6pm (reception and dinner+speaker)
End: Sunday, April 29 at noon
Email your interest to participate in the Boise GeoSwath workshop to: geoswath07@umich.edu (this reaches Ben van der Pluijm and Sara Tourscher).
Include in your email
the region(s) and/or topic(s) that you are most interested in
a brief description of relevant expertise and/or motivation to attend
Faculty, research scientists, post-doctoral fellow and
senior PhD students are all encouraged to attend.
We will decide by mid-March on participation, allowing sufficient time for
travel planning to Boise.
We will support all lodging and meals for the workshop and make a significant contribution toward your travel. Local arrangements have already been made, based on shared lodging (large suites!). Transportation arrangements to Boise are your own responsibility. Plane, bus, car, bike, foot are all allowed.
Please make sure that you are available for the duration of the workshop, from Friday's reception/dinner to Sunday noon (no lunch planned to allow convenient departure times).
Contact us for more info, Randy Keller
(grkeller@ou.edu ), Basil Tikoff
(basil@geology.wisc.edu ), Ben van
der Pluijm (vdpluijm@umich.edu ), or use
our GeoSwath07 email
address above.
December 21, 2007.
